AU7535974A - Improvements in electrical detective circuits - Google Patents

Improvements in electrical detective circuits

Info

Publication number
AU7535974A
AU7535974A AU75359/74A AU7535974A AU7535974A AU 7535974 A AU7535974 A AU 7535974A AU 75359/74 A AU75359/74 A AU 75359/74A AU 7535974 A AU7535974 A AU 7535974A AU 7535974 A AU7535974 A AU 7535974A
Authority
AU
Australia
Prior art keywords
electrical
detective
circuits
detective circuits
electrical detective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU75359/74A
Other versions
AU469571B2 (en
Inventor
Jan Vermeulen Dirk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Western Industries Pty Ltd
Original Assignee
Western Industries Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Industries Pty Ltd filed Critical Western Industries Pty Ltd
Application granted granted Critical
Publication of AU469571B2 publication Critical patent/AU469571B2/en
Publication of AU7535974A publication Critical patent/AU7535974A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/007—Safety arrangements on railway crossings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
AU75359/74A 1974-06-11 1974-11-14 Improvements in electrical detective circuits Expired AU469571B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA00743701A ZA743701B (en) 1974-06-11 1974-06-11 Improvements in electrical detective circuits
ZAZA74/3701 1974-06-11

Publications (2)

Publication Number Publication Date
AU469571B2 AU469571B2 (en) 1976-02-19
AU7535974A true AU7535974A (en) 1976-02-19

Family

ID=25567790

Family Applications (1)

Application Number Title Priority Date Filing Date
AU75359/74A Expired AU469571B2 (en) 1974-06-11 1974-11-14 Improvements in electrical detective circuits

Country Status (6)

Country Link
US (1) US3952977A (en)
AU (1) AU469571B2 (en)
DE (1) DE2458456A1 (en)
FR (1) FR2274488A1 (en)
GB (1) GB1457193A (en)
ZA (1) ZA743701B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304377A (en) * 1977-06-08 1981-12-08 Compagnie De Signaux Et D'entreprises Electriques Electrical block separating joints for railway signaling systems
FR2598374B1 (en) * 1986-05-06 1988-08-26 Signaux Entr Electriques IMPROVED TRACK CIRCUIT FOR RAILWAY TRACK APPARATUS
US5029780A (en) * 1990-05-14 1991-07-09 Safetran Systems Corporation Multi-frequency railroad grade crossing termination shunt assembly
US6102340A (en) * 1997-02-07 2000-08-15 Ge-Harris Railway Electronics, Llc Broken rail detection system and method
US8857770B2 (en) * 2004-01-02 2014-10-14 David J. Ruskauff Railway dark territory switch automation
US7416159B2 (en) * 2004-01-02 2008-08-26 Donald Coy Beaman Method and apparatus for controlling railway switches
DE102016203108A1 (en) * 2016-02-26 2017-08-31 Siemens Aktiengesellschaft Arrangement for monitoring the document status of a switch or a track area
DE102017205854A1 (en) * 2017-04-06 2018-10-11 Siemens Aktiengesellschaft Arrangement for monitoring the document status of a switch or a track area

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345512A (en) * 1965-05-06 1967-10-03 Westinghouse Air Brake Co Audio frequency overlay detector track circuit for electric propulsion territory
US3524054A (en) * 1968-01-08 1970-08-11 Gen Signal Corp High frequency track circuits for rail-roads interrelated at switches and crossovers
US3819933A (en) * 1972-12-08 1974-06-25 Westinghouse Air Brake Co Detector track circuit for railroad crossings

Also Published As

Publication number Publication date
FR2274488A1 (en) 1976-01-09
US3952977A (en) 1976-04-27
DE2458456A1 (en) 1976-01-02
AU469571B2 (en) 1976-02-19
FR2274488B3 (en) 1977-07-22
GB1457193A (en) 1976-12-01
ZA743701B (en) 1975-06-25

Similar Documents

Publication Publication Date Title
AU476940B2 (en) Integrated circuit
AU498611B2 (en) Integrated circuit
CA1020677A (en) Constant current line circuit
ZA802653B (en) Fault location in electrical circuits
AU469571B2 (en) Improvements in electrical detective circuits
AU497134B2 (en) Circuit breaker
CA1027243A (en) High voltage protection circuit
CA1018252A (en) Power measurement circuit
AU498064B2 (en) Electrical crimping-ferrule
CA1028739A (en) Circuit breaker
AU501739B2 (en) Circuit breakers
AU499732B2 (en) Electrical contacts
CS179126B1 (en) Voltage limitation circuit
CA1034626A (en) Circuit breaker
CA975427A (en) Electrical circuit tester
AU483488B2 (en) Improvements in electrical equipment
AU495339B2 (en) Improvements in electronic detection devices
AU486831B2 (en) Integrated circuit
AU492755B2 (en) Integrated circuit device
AU8058775A (en) Integrated circuit
AU8415975A (en) Limiting circuit
AU492293B2 (en) Integrated circuits
AU486170B2 (en) Memory circuit
AU495142B2 (en) Electrical contacts
AU478177B2 (en) High voltage protection circuit